波纹翅片开设涡发生器强化传热数值模拟

工程热物理学报 , 2014, 35(1): 119-122.

波纹翅片开设涡发生器强化传热数值模拟

闵春华 ^1, , 齐承英 ^2, , 王恩宇 ^3, , 田丽亭 ^4, , 秦亚举 ^5,

1.河北工业大学能源与环境工程学院,天津300401

2.河北工业大学能源与环境工程学院,天津300401

3.河北工业大学能源与环境工程学院,天津300401

4.河北工业大学能源与环境工程学院,天津300401

5.河北工业大学能源与环境工程学院,天津300401

基金项目: 国家自然科学基金项目(51106041)

关键词：强化传热 , 纵向涡发生器 , 组合翼 , 数值模拟

Numerical Modelling on Heat Transfer Enhancement Performance of Wavy Fin-and-Tube Heat Exchanger Punched With Vortex Generator

MIN Chun-Hua ^1, , QI Cheng-Ying ^2, , WANG En-Yu ^3, , TIAN Li-Ting ^4, , QIN Ya-Ju ^5,

1.河北工业大学能源与环境工程学院,天津300401

2.河北工业大学能源与环境工程学院,天津300401

3.河北工业大学能源与环境工程学院,天津300401

4.河北工业大学能源与环境工程学院,天津300401

5.河北工业大学能源与环境工程学院,天津300401

Keywords： heat transfer enhancement , longitudinal vortex generator , combined wing , numerical simulation

在波纹翅片上开设矩形翼和组合翼纵向涡发生器,采用数值模拟的方法分析其强化换热特性,分析辅翼的几何尺寸,包括辅翼攻角、长度和宽度等对换热增强比Nu/Nu0以及综合强化换热因子(Nu/Nu0)/(f/fo)1/3的影响.结果发现:矩形翼和组合翼能显著增强波纹翅片的对流换热;由于开设纵向涡发生器后使流动阻力增加,综合强化换热因子小于换热增强比;组合翼的换热增强比和综合强化换热因子均大于矩形翼;对于组合翼,随着辅翼攻角、辅翼长度或辅翼宽度的增加,换热增强比和综合强化换热因子均增加.

参考文献

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